CVE-2020-25657
Public on 2021-01-12
Modified on 2024-10-24
Description
A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. The highest threat from this vulnerability is to confidentiality.
Amazon Linux will not be providing a fix for CVE-2020-25657 in Amazon Linux 2 because fixing the issue would affect the backward-incompatible API, provided by M2Crypto, by altering how applications handle decryption errors.
Amazon Linux will not be providing a fix for CVE-2020-25657 in Amazon Linux 2 because fixing the issue would affect the backward-incompatible API, provided by M2Crypto, by altering how applications handle decryption errors.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | m2crypto | No Fix Planned | ||
| Amazon Linux 1 | python-m2crypto | No Fix Planned |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | CVSSv3 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | CVSSv2 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |